. Lateral curvature of the spine and round shoulders . jar of walking. The total length of the spine is given as follows by different authors:Cunningham, 70 to 73 cm.; Morris, 70 cm.; and Krause, 72 to 75 cm.(along the curves), which is 45 per cent, of the body-length. Therelative length of the separate regions is shown in the following table: Beaunois. Males. Females. Cervical region 13-140111. cm. cm. cm. Dorsal region 27-29 cm. cm. 27 cm. cm. cm. Lumbar region 12-15 cm. cm. cm. cm. cm. ^ Cunningham: Tex
. Lateral curvature of the spine and round shoulders . jar of walking. The total length of the spine is given as follows by different authors:Cunningham, 70 to 73 cm.; Morris, 70 cm.; and Krause, 72 to 75 cm.(along the curves), which is 45 per cent, of the body-length. Therelative length of the separate regions is shown in the following table: Beaunois. Males. Females. Cervical region 13-140111. cm. cm. cm. Dorsal region 27-29 cm. cm. 27 cm. cm. cm. Lumbar region 12-15 cm. cm. cm. cm. cm. ^ Cunningham: Text-book of Anatomy, Macmillan, 1902.^Morris: Human Anatomy, Blakiston, 1903.^ Dwight: Medical Record, Sept. S, 1S94. 2 ANATOMY OF VERTEBRAL COLUMN AND THORAX. It is frequently stated that the length of the spine in different individualsis pretty constant, but Dwights figures show rather a wide fifty-six male spines the longest was cm. and the shortest In a straight line, the column measures in men from 66 to 70 cm., £.. ;»^. Fig. I.—The Spine Seen from theSide, Showing the PhysiologicalCurves.—(IFarreji Museum.) Fig. 2. Thk SfiNi Si;en from theFront.—( Warren Museum.) and in women from 66 to 69 cm., with an average of 67 cm. (Krause).The height along the chord of this arc is forty per cent, of the totalheight of the^ndividual. In the fetus and young child the column forms 1/a greater proportion of the body-length. At puberty the more rapidgrowth of the rest of the body overtakes that of the spine, which INTERVERTEBRAL DISCS. 3 completes its growth between the ages of twenty-three and thirty-oneyears. The percentage of total length of the individual occupied by thespine without the sacrum is given for different ages by Moser as follows: Per Gent, of Verte-Vertebral Column bral Column toBody-length. Length. Body-length. o 50 19-2 38-4 3 86 36-8 5 112 35 30 II 138 41 14 152 44 15^ 162 45 Adult 167 57 The spine is divided in
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